Apparatus for mixing and pressing smokeless powder.



, c. A.I Hmm.-

APPARATUS FOR MIXING AND PHESSING SMOKELESS POWDER. APPLICATION FILEDNOV. 25, 1911.

Patented Apr. 25, 1916.

2 SHEETS-SHEET l.

WnTN asses C A. HIRTH A-rToRN EY Cf A. HIRTH.

APPARATUS-FOR MIXING AND PRESSING SNIDKELESS POWDER.

APPLICATION FILED Nov. 25, 1911.

1, mwo., Patented Apr. 25, .1911s.

2 SHEETS-SHEET 2- lNvls'NroR GA. HlRTH VV|TN 1555155 ArromuevTiurttenihci .fi i

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of ,Winch 'the elliirfinff it lr. nuinu wrestler the mess nut ith lotheror simil liquids inited thc-ra he ore it is fired soupe oi tuhee, riiih;""a or press, nist oi icm suppiied to n i'niiingg uurchinc iii Whiri theether was nddeijl. The uniss thormi; y mixed with etl'uer was then reycdlio the prese' und the ether vapors were u en opportunity of iscujijiingin thc i j 'nuwfimnisni und finally iu the presen Tense-- ipzcntly itwas i'iecessiiry to provide suituhie oht'urutinil' or absorption devicesin these 'hrce :ippiiunces notu'ithsturiding which the `ipors uerc still:dile to escupe., puri-icuy during' trunsi'cr 'from one apparatus heother. This de? t; is eli'cctuailiy oh- ,ted or the combined mixing'uppirraitus pres which forms the olifect oi the n osent in rcntion.

This renders ,It possil'ile o employ suhstuiurcs which either owing! otheir lui ous chiiructer or tohtheir ie should he liept inc 'sed as terus pos yle: the i'i \ce:-;s:\r door spore i`l uleo lernt-ly rcdurwi, noconverer mechanism is necessary und finally economy in luhor is c tir(ted.

ille invention will new he descrihevl with nrc to the embodiment-1thrrioi which ur(- illustrntcd hy wey ol exuuiplc in the:awningmnyingdruuiutl in the urcouipinyin; druu'ii is un clcvutionpartly in scrl i, shows :i section on the liuc .ir-4 ififf is n'lrziunental elevution i 'win :ind lfigx i is :i pluri. uirtly in uiirtsiil.

"laine is composed oil three similar cvliruh-r mid i revolving' about acentral cohuun li, in /rcfolringf the (zy/lindern euch oi t'iciu rain heen feed o oci J' u pr, "iition which true-1 if hy one ot the trui othershown in the po, it is filled with the meunier une El), in whichlieuruth on Filorcniher .ilitlzcrto the nimes hns nuichinc, ir. thecimfvcyci',

' when linder 2 s rotin-nien.

.Pnixentetll Ampia 25, liiiiti.,

mi, will. Serial No. @$95,483. l

this cylinder is the ixed obturfi'ting plete 5 which. is common to allthree cylinders while :there the piston (i o' si suitablel'iydrnulicpreliniiiuufy pressing device 7 is located;

when the cylinder has heen charged Ythis I piston descends and producesa cylindrical preliininurily pressed Vbut also provided with u cavityfor the reception of the ether. i

:in order to prevent the nuiss from escaping upward u cover tney heprovided which is provided with u central aperture for the p statige ofthe piston G. After this preinn y pressingr operation the' cylinder' 2 hitf charge is mused to occupy the positii 1 il' loy ifevolrirnigF itabove the plate 5; th s is the position which the cylinder 3 is rcprNIrita-d :is occui'iying' iii-lijn". l oi' the draining. The revolutioncan he facilitated by suppinfting the lmll hearing' 8 of the bodycurryine; the cjiflinders Q, 3 and 4. on elastic materiel such asleather or the like which` the compression pressure ceases, slightlylitts the cylinders from the plate 5` lo. the position ilv the cylinderis located :diode Ki, depression l() in the tuhle plete which contains umixing' arm ll (Figs. l und secured to u screw spindle 12. At its upperpurt the cylinder is closed by u. cover l-S which is preferably alsohydrulicully applied und which provided -with a pussage lll` for theadmission of the ether und ii I issepe lf3 VFor the discharge of the nirduring; the charging. lt is preferable to provide for the obturation ofboth passages hy upon ai vulve rod und yicldubly pressed iu its scf-uthy :i coiled spring :it the upper end ot 'the vulve rod. rlhe vulve canhe depressed hy any desired Ineens such :is thev com und leverillustrated in Fig. l. The ether mimitted fills the previously 'formedce i'ity und thus from the cou'iuiencement cornes large proportion ofthe 100 into contact 'with n amiss:l thereby largely facilitating themixing'. The spindle l2 of the mixingr erm is driven in any convenientmanner for eX- ;irnule by means oit belts 17, one running drum 19 whichis in mesh with yu geur wheel 110 u single cone-shuped vulve 16, mountedit and 'the other crossed und runningT 105 ment tion Hl. ln order toobtain a uniform mixture and simultaneously an even division of thc massprovision is made enabling the mixing arin in its two end positions tocarry out several rotations without advancing. Thesquare-threaded nutQ1, by 'which the mixing` spindle 12 is moved, is rotatably mounted ouball-bearings: during,y the upward and downward movement of the mixingarm this nut is held Jfast by the pawl Q2 under inwardly directed springpressure, which pawl re against the nose 24 ot' the threaded nut. lo,pon reaching the end of vthe upper or lower stroke a' cone frictionwheel 25, by pressingr on a roller-2G of the pawl 22. diseng'ajes thelatter. The nut is thus released. which. due to the thread frictionwhich is always greater than the friction in the ball bearings, rotateswith the mixing spindle 12. and hence the mixing' arm carries out apurely rotary movement. security the cone friction wheels 25 are eachprovided with a rigid stop Q3, which forcibly rotates the nut 2l afterrelease ot the detent at the nose Q4. The movement ot the spindle 1Qadvantageously reversed by some suitable means actin;i automaticallyupon the completion of a given number of revolutions. Then the mixingris completed `the cylinder containing the mass is further rotated intothe position lll it' desired beneath a suitable cover which may be fixedand extend from U to Hl. l'n the position lll it is located above asieve-like die 28 and beneath a hydraulic press piston 29 which upon itsdescent toi-ces` the mass through'the die in the usual manner exceptt'or a portion which remains above the matrix in the form ot cake inwhich is retained any foreign bodies which it may contain. The materialforced through the die reaches a suitable table 30 or convcyer mechanismin a form corresponding to the perforations in the die. Preferably thedie tor the pressingr operation is rigidly connected with the cylinderand after the pressing it is re.

moved for cleaning purposes.

Naturally 'the position ot' the cylinder should be selected in such ainanncrthat in all three cylinders` the three operations proceedsimultaneously, that is to say, While the mass is beingr charged andpreliminarily Liedes@ ether i-1y ad' fl while ni .z

pressed in cylinder P and mixed in cylinder the mass is forced out.

ln addition to its employment 'tor die inanutacture of smokeless powderthe machine described can also be utilized i'or exannile by adapting theconstruction to the special conditions tor the manui'facture of otherproducts in which :i mass is to be mir-ed with a liquid and the pastethus l'ormcd brought into itslliual form bv pre. ip; and possiblj.'vsubsequent disinte ral-ion.

Having now particularly described and ascertained the nature of my saidinvention and in what manner the saine is to be performed, I declarethat what l claim l. In a machine for manul'acturinfl smokeless powder`the combination olf a p ton; mixing device adapted to travel parallel tothe axis of the piston: and a cylinder adapted to be revolvedsuccessively into operative relation with the. piston and the mixingdevice. F i

2. `.In la machine smokeless powder, the pressing piston; a mixingdevice adapted to travel parallel to the axis ot' tho piston; and a.plurality of cylinders adapted to be revolved successively intooperativo` relation with the piston and the mixing device.

3. In a machine for manufacturing smokeless powder, the combination of amixing apparatus; and a group ot cylinders adapted tobe revolved intosuccessive operative relation with the mixing apparatus.

l. ln a machine for the manufacture ot smokeless powder. the combinationof a preliminary pressing api'iaratus: a mixing apparatus; a subsequentpressing apparatus; and a cylinder adapted to be placed in operativerelation with each ot' said apparatus respectively.

In a machine for inannfacturing combination ot` a for manutacturiiig,rsmokeless powder, the combination of a preliminary pressing.; apparatus;a mixingy apparatus: and a plurality of cylinders adapted to be revolvedinto successive eoperation with all ol said apparatus.

G. In a machine for the manufacture ou" smokeless powder, thecombination of a cylinder adapted to hold ay mass to be pressed; and apressing piston of less diameter than the cylinder and adapted to bemoved axially oiI the cylinder and pressed nearly therethrough so thatin addition to a preliminary pressing a cavity is formed in the mass.

in a machine for the manufacture it smokeless powder, the combination ola pressing cylinder; a mixing means therein used in connection with thepreliminary pressing apparatus for the cylinder; and a removable coverfor said cylinder provided with a. passage ior the mixing liquid and adischarge opening for tho air forced out.

nineteen 8. En a machine for the manufacture oli smokeless powder, thecombination of a piston; a mixing device adapted to travel perallel vtothe axis of the piston; a cylinder adapted to be placed successively invoperative relation to said'piston and mixing,` device; and a coveradapted to cover the cylinder when in operative relation with the mixingdevice and provided with a passage 'for the mixing liquid; a dischargevopening for the air forced out and a valve for said passage and opening.

l). In a machine for manufacturing; smokelesspowder, the combination oia piston; a. mixing device adapted to travel par allelV to the axis ofthe piston; a, cylinder' adapted to be revolved successively intooperative relation with the-piston and mixing device; and'means forimparting incwement of rotation and translation to the mixing devicethroughout the length oit the cylinder, when in operative relationthereto.

10. n a machine for manufacturing smokeless powder, the combination oita piston; a mixing device adapted to travel parallel to the axis of thepiston; a cylinder adapted to be revolved successively into operativerelation with the piston and mixing device; and means for impartingmovement o'l' rotation and translation to the mixing device throughoutthe length of the cylinder, when in operative relationthereto and ilorcontinuing the movement of rotation and automatically arresting themovement of translation fo' a short period at the end portions of themovement ot translation.

ll. In a machine for Inanut'acturiiig smokeless powder, the combinationo'l a preliminary pressing piston; n mixingA device adapted to moveparallel to the axis of the piston; and a cylinder o'l" greater diameterand length than the piston and adapted to be successively revolved intooperative relation therewith and with the mixing apparatus. y

1Q. In a machine for the manutactl'ire oli smokeless powder, thecombination oli a piston; a mixing device adapted to travel parallel tothe piston; a cylinder adapted to be revolved into successive operativerelation withl said piston and device; a cover above said device andadapted to cover the cylinder when in operative relation with thedcvice, and provided withinlet and outlet closabler openings; and meansfor holding the cover tight upon the cylinder.

13,111 ay machine oit the character described, the combination of aypreliminary. pressing piston; `a miner cover provided with a closableopening; a 'forming piston; an obturating piece disposed a distancebelow said pistons and cover; revolvingl member rotatably mountedbetween said ,plate anc vsaid pistons and cover and comprising aplurality oi' cylinders each one'ot which is adapted to be broueghtsuccessively into register with the pr lng piston, the cover and theforcing piston respectively; and means adapted to be disiiosed in thecylinder under the cover and to be moved up and down and rotatedtherein.

i4. ln a n'iaeliine for the manufacture ot smokeless powder, thecombination of a preliminary pressi n, piston?, a mixer cover providedwi'li an inlet and. a discharge opening; vulves tor closing saidopenings; a forcing piston; a stand supporting said pistons and cover atthe upper part thereof; an obturating plate below and spaced from saidpistons and cove. and provided with a die below said forcing piston;y arotatable member mounted between said plate and said pistons and coverand eomprisinif,t aplurality of cylinders each one of which is adaptedto be brought into successive with. the pressing piston, the mixer coverand the forcing` piston respectively;A a mixing spindle passing through.said plate coaxial with said cover; a mining arm on the upper end olisaid spindle; and means 'tor rotating the spindle and moving; the sannein an axial direction. f

ln testimony whereof 'il have signed my name to this specification inthe presence of two subscribing witnesses,

CARL ALBERT lil'ltlll-l.

Witnesses lhmns'r ENTENMANN, llaifmivn lniiinniz.

